This is a grape vine design worked in Zalakdozi (I have used needle and not the hook). Its entirely worked in parallel/ concentric rows of chain stitch.First, the design is outlined using chain stitch and then filled in using chain stitch and a different shade.

Shading using Chain Stitch

You can notice Shading that I have done using chain stitch. The left side vine and leaves around the flower are worked using three strands of green and yellow color threads each separately, where as, on the right side , the leaves and vine have been worked with two strands of green and one strand of yellow thread held together , giving the shaded appearance.